Home / 86,816.96-130,139.22-49,299.38

Finding the Fourth Proportional to 86,816.96, 130,139.22 and 49,299.38

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Solution

The fourth proportional to 86,816.96, 130,139.22 and 49,299.38 is: 73,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,816.96 : 130,139.22 = 49,299.38 : x
  2. Step 2: Convert to fraction form
    86,816.96/130,139.22 = 49,299.38/x
  3. Step 3: Cross multiply
    86,816.96x = 130,139.22 × 49,299.38
  4. Step 4: Simplify right side
    86,816.96x = 6,415,782,859.68
  5. Step 5: Solve for x
    x = 6,415,782,859.68/86,816.96
  6. Step 6: Final answer
    x = 73,900.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.